Los Angeles Times interviews UB volcanologist about Mexican volcano

UB volcanologist Michael Sheridan is quoted in an article in the
Los Angeles Times about the dangers posed by Mexico’s
giant Popocatepetl volcano, which has displayed a notable increase
in activity levels in the past few days. “In the back of my
mind is the fact that these volcanos are more or less continuously
accumulating gas and liquid in a subterranean chamber,” he
said. “The longer the material is sitting down there …
the bigger the eruption that could be expected.”